diff --git a/scheme/cyclone/util.sld b/scheme/cyclone/util.sld
index d002a3fd..9bec8218 100644
--- a/scheme/cyclone/util.sld
+++ b/scheme/cyclone/util.sld
@@ -662,6 +662,7 @@
    '(
      (define . define)
      (define-syntax . define-syntax)
+     (let-syntax . let-syntax)
      (define-c . define-c)
      (if . if)
      (lambda . lambda)